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Do you really need that tool? I can buy a used 2017 Potenza cranckset for a reasonable price. I'm considering replacing my 2014 Athena cranckset for this one. However the dissambly may be impossible without the tools?

Attermann wrote:Potenza has nothing to do with over torque, potenza is power torque, and there where some talk about it being made in ultra torque, three different axle type, so no

Potenza is PT, yes (except see next comment). Assembly needs a 14mm hex, disassembly requires pulling off the LH crank with a pulling tool. This latter point has been the trigger for much interwebz angst.

Potenza HO, for the disc groupset, is, interestingly for Campag nerds, made with a UT spindle. 10mm hex for assembly/disassembly.